Pivoting Load-bearing Assembly with Force Sensor
US-2016122167-A1 · May 5, 2016 · US
Hydraulic clamping systems having load side-shifting variably responsive to load weight
US10494241B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10494241-B2 |
| Application number | US-201615267694-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 16, 2016 |
| Priority date | Sep 16, 2016 |
| Publication date | Dec 3, 2019 |
| Grant date | Dec 3, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Different exemplary control systems for a hydraulically powered load-handling clamp, of the type usually mountable on industrial lift trucks or automatically guided vehicles, are disclosed. The disclosed systems variably limit a hydraulic force, by which load-clamping arms move a load substantially transversely, automatically depending on the weight of the load being moved, so as to avoid excessive transverse force applied to fragile loads.
First claim
Opening claim text (preview).
What is claimed is: 1. A control system comprising a load-handling clamp assembly having opposed load-clamping arms movable laterally selectively toward and away from each other, and in unison with each other along a common lateral direction, said control system comprising a side-shifting force control circuit configured to decrease a side-shifting pressure progressively in response to lower load weights, the side-shifting force control circuit containing a pressure relief valve that opens to relieve the side-shifting pressure, and a sensor assembly capable of sensing a weight of a load supported between said load-clamping arms and, automatically in response to said weight, variably limiting a force by which said opposed load-clamping arms are movable laterally selectively toward and away from each other, and alternatively in unison with each other, along said common lateral direction. 2. The control system of claim 1 wherein said control system is capable of variably limiting said force hydraulically. 3. The control system of claim 1 wherein said control system is capable of variably limiting said force by limiting force applied by plural actuators to move said pair of clamp arms in unison with each other along said common direction. 4. The control system of claim 3 wherein said control system is capable of variably limiting said force hydraulically. 5. The control system of claim 1 wherein said control system is capable of variably limiting said force by limiting force applied by a single actuator to move said pair of clamp arms in unison with each other along said common direction. 6. The control system of claim 5 wherein said control system is capable of variably limiting said force hydraulically. 7. The control system of claim 1 wherein said control system is capable of variably limiting said force by limiting force applied by an actuator to move said pair of clamp arms in unison with each other along a curved direction. 8. The control system of claim 7 wherein said control system is capable of variably limiting said force hydraulically.
Assignees
Inventors
Classifications
Roll clamps · CPC title
Concurrent control, e.g. synchronisation of two or more actuators · CPC title
Control of force or torque of the output member · CPC title
the output members being arranged in multiple groups · CPC title
Methods for controlling pilot pressure · CPC title
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- What does patent US10494241B2 cover?
- Different exemplary control systems for a hydraulically powered load-handling clamp, of the type usually mountable on industrial lift trucks or automatically guided vehicles, are disclosed. The disclosed systems variably limit a hydraulic force, by which load-clamping arms move a load substantially transversely, automatically depending on the weight of the load being moved, so as to avoid exces…
- Who is the assignee on this patent?
- Cascade Corp
- What technology area does this patent fall under?
- Primary CPC classification B66F9/22. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 03 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).